Survey Programs

Basic Characterization (validity for 8 to 10 years)

With the Basic Characterization dynamic processes in the soil are depicted and assessed. The results lead to activities and recommendations to optimize and sustainably preserve soil fertility. This survey program is recommended to characterize the status quo of soil fertility. Furthermore it is possible to evaluate changes in agricultural practices, fertilization strategy etc.

All information of the survey program “Current Nutrient Supply” is included in the “Basic Characterization”.

You receive the following information:

  • Is the actual nutrient supply high enough to feed the standing crop resp. the crop to be planted?
  • Are the nutrients in equilibrium?
  • Is it necessary to fertilize nutrients? Is it possible to mobilize nutrients (e.g. Phosphorus)?
  • Which acid buffer system is prevalent in the soil (liming yes/no)?
  • Where is the humus niveau located? How is the quality of the humus?
  • Which milieu conditions are in place for soil organisms?
  • Is the potential of the site reached?
  • Is soil fertility sustainably preserved?
  • Are the soil functions (e.g. ground water protection, flood protection) performed properly?
  • Is a hazardous potential hidden in the soil (e.g. potential toxic substances)?
  • How does the soil react to the application of liquid and solid biogas residues?

Range of parameters:

Basic Parameters/Sorption Complex:
Soil Texture (KH), Coloration, Turbidity, pHKCl, pHWater, Lime Content, Electrical Conductivity (eC), Corg (=Soil organic Matter Content), Soil organic Matter Quality (C/N, C/P, C/S), Cation Exchange Capacity (CECactual, CECpotential), Base Saturation, Substance Ratios on the Sorption Complex (Ca, Mg, K, Na, Al, NH4, Fe, Mn, H, pot.Acid).

Elements in the Water Extract:
Ca, Mg, K, Na, NH4-N, NO3-N, Al, Ba, P, Si, SO4, Cl, Fe, Mn, Cu, Zn, Co, Mo, B, As, Ni, Cr, Pb, Cd, Tl, V.

Elements in the Exchanger Extract:
Ca, Mg, K, Na, NH4-N, Al, Ba, P, Si, Fe, Mn, Cu, Zn, Co, Mo, B, As, Ni, Cr, Pb, Cd, Tl, V.

Elements in the Reserve Fraction:
Ca, Mg, K, Na, Al, Ba, P, Si, Fe, Mn, Cu, Zn, Co, Mo, B, As, Ni, Cr, Pb, Cd, Ti, V.

5 Phosphorus Pools:
Water-soluble, exchangeable, acid-soluble and organic Phosphorus as well as total contents.

Infosheet Basic Characterization

Current Nutrient Supply (validity for 2 years)

The survey program Current Nutrient Supply evaluates the actual nutrient supply and helps to optimize the fertilization strategy.

You receive the following information:y´

  • Is the actual nutrient supply high enough to feed the standing crop resp. the crop to be planted?
  • Are the nutrients in equilibrium?
  • Is it necessary to fertilize nutrients?
  • Which acid buffer system is prevalent in the soil (liming yes/no)?
  • Where is the humus niveau located? How is the quality of the humus?
  • Which milieu conditions are in place for soil organisms?
  • Is a hazardous potential hidden in the soil (e.g. potential toxic substances)?

Range of parameters:

Basic Parameters/Sorption Complex:
Soil Texture (KH), Coloration, Turbidity, pHKCl, pHWater, Lime Content, Electrical Conductivity (eC), Corg (=Soil organic Matter Content), Soil organic Matter Quality (C/N, C/P, C/S), Cation Exchange Capacity (CECactual, CECpotential), Base Saturation, Substance Ratios on the Sorption Complex (Ca, Mg, K, Na, Al, NH4, Fe, Mn, H, pot.Acid).

Elements in the Water Extract:
Ca, Mg, K, Na, NH4-N, NO3-N, Al, Ba, P, Si, SO4, Cl, Fe, Mn, Cu, Zn, Co, Mo, B, As, Ni, Cr, Pb, Cd, Tl, V.

Elements in the Exchanger Extract:
Ca, Mg, K, Na, NH4-N, Al, Ba, P, Si, Fe, Mn, Cu, Zn, Co, Mo, B, As, Ni, Cr, Pb, Cd, Tl, V.

Infosheet Current Nutrient Supply

Soil Expertise

During the planning of a biogas plant the fertility of the soils is often unattended. These soils are used to grow energy plants for the biogas plant and to fertilize liquid and solid residues of the fermentation process. Designated soils are able to handle biogas residues very well. Other soils possibly suffer a loss of soil fertility and crop yields after the application of biogas residues. The Soil Expertise clarifies if biogas residues sustainably damage soils or if the wanted fertilization effect is accomplished.

The Soil Expertise also assesses the suitability of sites for the designated utilization before a leasing or purchase contract is signed.

Soil Expertises are carried out e.g. during environmental impact assessments (EIA’s).

Range of parameters:

Depends on the questions and problems.

Infosheet Soil Expertise

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